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Threats to biodiversity

Total questions: 20

Worksheet time: 7mins

Name
Class
Date
1.

Where does most air pollution come from?

a)

Human activities

b)

Wildfires

c)

Volcanic eruptions

d)

Allergens

2.

The number one reason for deforestation?

a)

Logging

b)

Agriculture

c)

Urban development

d)

To increase biodiversity

3.

Deforestation leads to a decrease in atmospheric carbon dioxide.

a)

True

b)

False

4.

Breaking up large areas of habitat into smaller pieces is called...

a)

Destruction

b)

Conservation

c)

Logging

d)

Fragmentation

5.

A species that is not supposed to be in an ecosystem (non-native) and has no competition

a)

invasive species

b)

fossil fuels

c)

direct harvesting

d)

indicator species

6.

A good example of the fragmentation of habitat would be _____.

a)

Cutting down a forest to build a housing development.

b)

Draining a swamp to develop the land.

c)

Building a road through the woods.

d)

Polluting the James River

7.

Reducing the quality of habitat through pollution or invasive species is called ___________.

a)

degradation

b)

destruction

c)

fragmentation

d)

mitigation

8.

Fishing tuna at a rate of more than they can replace themselves is known as?

a)

Habitat destruction

b)

unsustainable

c)

trophic cascade

d)

overharvesting

9.

Which of the following is NOT a way in which humans are destroying habitats?

a)

Clearing out prairies to grow a single crop

b)

Gathering rain water to use to water crops

c)

Building a shopping mall with a large parking lo

d)

Cutting trees for toilet paper

10.

Which of the following is NOT a cause for the current decline in the biodiversity of our ecosystem?

a)

overexploitation of resources

b)

increasing human populations

c)

pollution of water sources

d)

regenerating forests

11.

A possible way to prevent species from becoming endangered is?

a)

increased use of fossil fuels

b)

more habitat converted to farms

c)

designating more areas as wildlife preserves

d)

increased urban expansion

12.
Biodiversity refers to
a)
extinct species
b)
the variety of species on Earth
c)
nonrenewable resources
d)
the rate of species decline
13.
When taken to a new habitat, non-native plants often threaten native plants of the new habitat.  Why do they do this?
a)
Non-native plants are able to mutate rapidly
b)
Non-native  plants cause native animals to relocate
c)
Non-native plants are able to be used for medicine
d)
Non-native plants compete with native plants for resources
14.
Kudzu has overgrown many parts of southern Missouri and native ground plants have disappeared from the area. This is an example of:
a)
Parasitism between kudzu and the native plants
b)
A predator prey relationship between ground plants and kudzu
c)
Competition occurring between the native and invasive species
d)
Commesalism occurring between the kudzo and native plants
15.
Species that are indigenous to an area with no human intervention
a)
invasive species
b)
native species
c)
all species that live in an ecosystem
16.

How is climate change affecting biodiversity?

a)

biodiversity is decreasing

b)

biodiversity is increasing

c)

climate change is not affecting biodiversity

17.

What are some effects of global warming?

a)

increase in ice caps and lower sea levels

b)

increase in tree growth and melting of ice caps

c)

Rising sea level and melting of ice caps

18.

Catching or removing more aquatic animals than the population can replace:

a)

livestock

b)

domesticated animals

c)

aquaculture

d)

overharvesting

e)

ruminants

19.

Untreated sewage entering rivers is an example of what part of HIPCO?

a)

Habitat Loss

b)

Invasive Species

c)

Pollution

d)

Overharvesting

20.

Burning fossil fuels results in there being more greenhouse gases to trap heat around the globe. This causes

a)

Habitat loss

b)

Invasive Species

c)

Pollution

d)

Climate Change